TRANSFER IONIZATION IN SLOW H++H- COLLISIONS

The transfer ionization reaction H-a(-) + H-b(+) = H-a(+) + H-b(1s) e, on which we had previously carried out experiments and calculations , is reconsidered here at higher collision energies and interpreted as ionization of weakly bound electron of the H- ion, accompanied by a s imultaneous resonant exchange of the 1s core electron. The ionization of H- is treated as being strongly coupled to the dominant mutual neut ralization channels H-a(-) + H-b(+) = H-a (1s) + H-b (nlm), and the cr oss sections for all relevant reaction channels are calculated by usin g the molecular-orbital close-coupling scheme.